I have 4x4 photos that I want to print on 4x6 paper. I don't want the photos to stretch to 4x6, I want them to stay 4x4 and have white space on the side. I don't have a photo printer so I would need to print them at Walgreens or Walmart or something. I also don't have any fancy photo applications like Photoshop and don't want to purchase anything that expensive. Is there any way I could do this in iPhoto or a free or cheap app? Any help would be greatly appreciated!